<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>内部样式表</title>
  <style>
    div {
      color: pink;
    }
  </style>
</head>

<body>
  <div>所谓内部样式表，就是在html野蛮内部写样式，但是是单独写到style标签内部.</div>
</body>

</html>